Volatile corrosion inhibitor, and forming material and formed article using the same

Abstract

A volatile corrosion inhibitor to be kneaded into a resin of the present invention comprises a nitrous acid metal salt, a benzoic acid metal salt, a saturated polycarboxylic acid or a metal salt thereof, and an anticorrosive component for nonferrous metals. The volatile corrosion inhibitor to be kneaded into a resin does not cause melting, gasification, decomposition, vaporization even when exposed to a high temperature condition for molding a thermoplastic resins into an article in a form of films, sheets or fibers. Further, the volatile corrosion inhibitor is free of generation of offensive odor or dust caused by sublimation. As the result, working environment does not deteriorate, and superior anticorrosive ability with respect to nonferrous metal materials such as copper as well as to iron based metal materials is exhibited. In addition, the present invention relates also to a volatile anticorrosive molding material obtained by kneading the volatile corrosion inhibitor into a resin.

Description

technical field [0001] The present invention relates to a volatile antirust agent which exerts a superior antirust effect on metals by being blended into a molding material mainly composed of thermoplastic resin, a molding material blended with the antirust agent, and a molding material using the molding material. Volatile anti-rust molded products obtained from materials. The antirust agent of the present invention is blended into thermoplastic resins such as polyolefin resins, and processed into films, sheets, fibers, etc. by blow molding, T-shaped mold molding, melt spinning, etc. shape, etc., thereby producing volatile antirust products useful for the antirust of various metal products. [0002] In particular, the thermal performance of the volatile antirust agent of the present invention is stable, and the molded materials and molded articles obtained by compounding the volatile antirust agent can withstand severe corrosion of iron-based metal materials represented by ir...

AI Technical Summary

Problems solved by technology

However, in these methods, it has been pointed out that there is a problem that the anti-rust agent is vaporized by heating at a high temperature of about 100 to 250°C when it is co-extruded with a thermoplastic resin, although it varies depending on the type of thermoplastic resin. , volatilization or reaction, not only reduces the anti-rust performance but also deteriorates the working environment, and deteriorates the physical properties and appearance of films or thin plates.

However, there is no problem when benzotriazole and tolyltriazole are blended into thermoplastic resins at low temperatures below 90°C, but if they are mixed with the volatility of steel materials at high temperatures exceeding about 100°C as described above, If the antirust agent is added to the thermoplastic resin, it will melt and react with other components to aggregate, and the aggregate will cause clogging in the filter part of the extrusion molding device

Also, there is a problem of poor molding when molding films, sheets, fibers, etc. due to aggregates

In addition, there is a problem that a part of the volatile anti-rust agent is vaporized due to the heat when molding into a film, etc., and the anti-rust effect cannot be fully exerted.

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